baber/WOPTO huggingface dataset:
Patent ES-320357-A1 (ES)
Title: Sulfur-modified unsaturated block copolyesters
IPC: D06M11/54
Filed: 1965-12-04
Abstract: A copolyester containing at least 5 wt. per cent of sulphur in the form of sulphonic acid or sulphonate salt groups consists of alternating blocks A and B, where blocks A derive from sulphur-free dicarboxylic acids and glycols, and blocks B consist of essentially linear chains containing sulphonated dicarboxylic acid and glycol residues it is prepared by melt blending a homopolymer providing blocks A with an unsaturated homopolymer, to give a copolyester containing 20-50 wt. per cent of blocks A and 80-50 wt. per cent of blocks B, and sulphonating the product with SO 2 , sulphurous acid or a metal sulphite. The copolymer may be used for treating shaped articles, e.g. fabrics, composed of a synthetic crystalline polyester having units identical with those of the blocks A of the copolyester of the invention. The blocks A may suitably be polyethylene terephthalate, optionally containing minor amounts of residues of adipic, sebacic, isophthalic, or sulphoisophthalic acids or diethylene glycol or p-oxybenzoic acid, or they may be polytetramethylene terephthalate, polydimethylenecyclohexane terephthalate, polyethylene naphthalene-2: 6- dicarboxylate, polyethylene diphenoxyethane- 4: 41-dicarboxylate or polyethylene oxybenzoate. Suitable unsaturated polyesters may be prepared from maleic, fumaric, itaconic, citraconic or aconitic acids and ethylene, tetramethylene or diethylene glycols. The sulphonation is preferably carried out using aqueous sulphurous acid or metal sulphite, e.g. sodium metabisulphite, at 50-120 C., to give an aqueous dispersion of the product. This dispersion may then be applied directly, e.g. by padding, to the shaped article, which is then dried and heated above 60 C., or the dispersion may be applied by dyeing processes. The unsaturated block copolymer may be applied to the article before the sulphonation step. To the dispersion for treating shaped articles may be added conventional optical brighteners and antistatic agents. In Examples polyethylene terephthalate is melt blended with polyethylene maleate or citraconate or itaconate then treated with sodium hydrogen sulphite or sodium metabisulphite or (in Example 27) benzyltrimethylammonium sulphite, before or after the blend is applied in aqueous dispersion to a polyethylene terephthalate taffeta or (in Example 3) a polyethylene terephthalate/cotton fabric. At the melt stage there may be added (in Examples 10-17) 2: 4 - dimethyl - 6 - [alpha] - methylcyclohexyl-phenol antioxidant, (in Example 26) 2: 5- di - t. - butyl - benzoxazol - 2 - yl - thiophene optical brightener, or (in Example 27) N-stearyldiethanolamine antistatic agent. To the fabric-treating composition may be added antistatic agents and diphenyl (Examples 20-21) or optical brighteners and o-phenyl phenol (Examples 22-25).
Patent ES-335264-A1 (ES)
Title: Pyridazone derivatives
IPC: C07D237/22
Filed: 1967-01-04
Abstract: A herbicidal composition contains a pyridazone derivative of the formula I:- wherein R1 is a phenyl or cycloalkyl radical which may be substituted by alkyl or halogen, R2 is hydrogen or an alkyl or phenyl radical, R4 is an alkyl radical or a phenyl radical which may be substituted by halogen or R3 and R4 together with the adjacent carbon atom form a cycloalkyl radical, as active ingredient. The composition may contain a solid or liquid carrier and may be in the form of solutions, emulsions, suspensions or dusts.
Patent ES-337985-A1 (ES)
Title: Stock box for a paper-making machine or the like
IPC: D21F1/06
Filed: 1967-03-14
Abstract: In a headbox that is isolated from the atmosphere and has a feed pipe for supplying stock to the headbox, a slice for supplying stock to the machine, an overflow weir extending across the full width of the headbox, a pipe for removing fluid that has flowed over the weir and a connection between the space above the stock to an air pump to create a cushion of air above the stock, the outflow pipe has a constriction so that the fluid level in a section of the pipe depends on the rate of flow over the weir, and a wall of the pipe section which is not horizontal at the fluid surface has a secondary outlet at the level of the fluid surface, the cross-section of the outlet being smaller than that of the pipe. As shown, the headbox 2 receives stock from a pipe 4, and emits it from the slice 5. An air-pump 9 maintains pressure or vacuum in the space above the stock surface 3 by means of pipes 12 and 13 and three-way valves 10 and 11. A channel 16 has a weir edge .17 and leads to an outlet pipe 19 and a white-water basin 20 under the machine, 29 and 30 are the breastroll and wire of a Fourdrinier machine. Flow through the pipe 19 is constricted by a valve 23, to maintain a mean fluid surface 26. A second pipe 27 passes into or through the pipe 19 and communicates with it. by a tapered vertical slot 28. As the rate of flow over the weir rises or falls, so does the level 26. This causes a fall or rise in the rate of escape of air through the slot 28, so altering the pressure in the air space above the stock to restore the fluid level to its former position. In a modification (Figs. 2 and 3, not shown), the height and cross-sectional area of the opening 28 are both variable.
Patent ES-339047-A1 (ES)
Title: Defrost control means for refrigerating systems
IPC: F25D21/00
Filed: 1967-04-07
Abstract: A refrigeration system in which air is forced over the evaporator is defrosted in response to a change in the relative resistances of two selfheating resistors, which change occurs when the air flow rate falls because of frost accumulation on the evaporator. As shown, the resistors 81, 82 are connected in a circuit which includes a D.C. source 62 and the solenoid 54 of a doublethrow relay switch 55, the latter being adapted to energize either a reversing valve 44 for hotgas defrosting or the air circulating fans 36. Solenoid 54 forms part of the output circuit of an amplifier including a PNP transistor 67, the input of the amplifier comprising an NPN transistor 71. The base of the latter is connected to a junction 83 which is normally connected via a switch 92, also controlled by solenoid 54, to the junction 80 between resistors 81, 82. Resistors 81, 82 are respectively exposed to and shielded from the air flow so that the resistance of 82 is normally substantially greater than that of 81 and the base of transistor 71 is negatively biased so that it is held off. Junction 83 is also connected via diode 96 and rheostat 90 with a thermistor 91 which is in contact with the evaporator and has a resistance which decreases on rise in temperature. As the air flow rate falls, resistor 81 breaks up, junction 80 and the base of transistor 71 become more positive and transistors 71 and 67 turn on. Solenoid 54 is thus energized and causes switch 55 to initiate defrosting and switch 92 to move to contact 94 so putting resistances 84, 85 in parallel and increasing the forward bias on the base of transistor 71. When the evaporator temperature increases as a result of completion of defrosting the resistance of thermistor 91 is sufficiently small to cause negative bias at the base of transistor 71 so that transistors 71, 67 turn off and switches 55, 92 return to their original positions. Initially the resistance of thermistor 91 remains sufficiently small to maintain the negative bias on transistor 71 and so prevent resistors 81, 82 from initiating a false defrost cycle. The refrigeration system is incorporated in an open-front display case (Figs. 1 and 2, not shown) and resistors 81, 82 are located in bores in an insulating block located in an air flow duct downstream of the evaporator, the bore accommodating resistor 82 being closed at its downstream end (Fig. 6, not shown).
Patent ES-344971-A1 (ES)
Title: Holders for protecting sticks of pasty materials
IPC: A45D40/06
Filed: 1967-09-12
Abstract: A holder for a stick of material e.g. lipstick comprises a godet 21, an inner sleeve 23 and an outer sleeve 31, the sleeves being relatively rotatable, and the godet having two lugs 25 received in longitudinal slots in the inner sleeve and in two helical grooves in the outer sleeve. The inner sleeve has surfaces 48, 45 against which resiliently deformable tongues 44, 44A of the outer sleeve bear to prevent movement of the stick when not being used. An alternative embodiment (Fig. 4, not shown) has the tongues on the inner sleeve, the tongues in this instance having their outermost surfaces of a greater diameter than the inner surfaces of the outer sleeve against which the tongues abut. The bearing surfaces may be cylindrical or frusto-conical. The inner sleeve may alternatively have helical slots and the outer sleeve may have longitudinal grooves.
Patent ES-345631-A1 (ES)
Title: Process for the crystallization of urea
IPC: C05C9/00
Filed: 1967-09-30
Abstract: A process for the continuous crystallization of urea from a biuret-contaminated solution of urea in water comprises subjecting the urea solution to a first vacuum crystallization at 40-70 C. to crystallize and remove from 90 to 95% of the supplied urea in the form of crystals, and subjecting the mother liquor to a second vacuum crystallization at 90-110 C. to crystallize and remove further urea crystals, and discharging the final mother liquor containing from 21 to 28% by weight of biuret. The final mother liquor obtained may be recycled to a urea synthesis zone or the final mother liquor may be treated whereby the biuret content therein is lowered, and the thus obtained mother liquor depleted in biuret may be recycled to the first urea crystallization stage. The biuret content of the final mother liquor may be depleted by heating it at 130- 160 C. under an ammonia pressure of 1 to 5 atmospheres, or by diluting and cooling it and isolating the biuret crystals thus formed.
Patent ES-348323-A1 (ES)
Title: Method and apparatus for deaerating liquid suspensions
IPC: B01D19/00
Filed: 1967-12-15
Abstract: A method for degasifying aqueous suspensions of cellulosic fibres comprises continuously supplying the suspension via pipe 16 to a degasifying chamber 5 and distributing it as a flowing continuous film over the internal surface of chamber 5, maintaining within the chamber by means of a vacuum pump connected to outlet 25 a vacuum sufficient to cause boiling of the suspension at its existing temperature e.g. 100-140 F which vapourises a portion of the water and releases gases from the suspension, condensing at least some of the water vapour by contact with skirt 30 sprayed with cooling liquid from annular shower head 35, removing condensate via outlet 28, removmg released gases via outlet 25 and separately removing the degasified suspension via outlet 13. Flexible diaphragm 18 can be moved up or down by introducing or moving water via pipe 21 from chamber 20 to adjust the circumferential outlet slot 19 at the top of pipe 16. In the embodiment of Fig. 2 (not shown) an adjustable venturi is situated at the top of pipe 16.
Patent ES-348937-A1 (ES)
Title: Inflatable body-attachments for marine lifesaving
IPC: B63C9/125
Filed: 1968-01-04
Abstract: A one-piece lifejacket of the type having a main buoyancy chamber B1 intended to overlie the wearer's chest and a secondary buoyancy chamber B2 around a keyhole shaped neck aperture, E2, has the opposite edges of the slot portion E1 of the aperture mechanically drawn together by the automatic tensioning of two tapes I caused by inflation of the lifejacket The drawing together of the slot portion E1 prevents the wearer's head from passing through the aperture during, e.g. impact with water. Each tape I is secured to a fabric patch G on one side of the slot and passes through a loop H secured to the patch G on the other side of the slot, before being secured to an individual or common patch J. The patches J, G move away from each other on inflation to thereby tension the tapes.
Patent ES-363353-A1 (ES)
Title: Azo dyestuffs containing triazines and vattable polycyclic quinones
IPC: C09B3/00
Filed: 1969-02-07
Abstract: The invention comprises dyes wherein a 1,3,5- triazine ring is bound to two vattable polycyclic quinones, free from SO 3 H groups, by -NH- groups and through an -O- or -NH- group to an azo dye that is free, in the o-positions to the azo bridge, from salt-forming metallizable groups. The dyes are prepared by the usual condensation processes from halotriazines. The polycyclic quinones are preferably aminoanthraquinones. The dyes are preferably used to colour cellulose materials by vat-dyeing processes in blue, green, yellow, red and brown shades. The dyes may also be used to colour synthetic polyamide and polyester fibres and to colour synthetic polymers (see Division C3).
Patent ES-372162-A1 (ES)
Title: Identification circuit for pal color television receiver
IPC: H04N9/465
Filed: 1969-10-03
Abstract: Identification circuit arrangement for a PAL colour television receiver comprises a PAL decoder 1 the chrominance subcarrier signal component of alternating phase appearing at output 5 and the component of constant phase at output 7. The swinging burst is gated-out 65 and applied to a synchronous demodulator .37 and the constant burst is gated-out 17 and applied to a subcarrier regenerator 25 (passive integrator) the output of which is applied via a line switchable phase-inverter 31 to an input of the synchronous demodulator 37 and to the demodulator and matrix circuit 13 from which the colour difference signals are derived. Switchable phase-inverter 31 is controlled by a PAL phase-switching signal generator 53 which comprises a divide-by-two circuit operated by line flyback pulses the switching state of which is corrected by an identification signal from the synchronous demodulator 37. A control signal output of demodulator 37 is connected to a phase control circuit which controls regenerator 25, the output of which besides being applied to the demodulator 13 is applied to a coincidence circuit 75 to which an output of the synchronous demodulator 37 is also applied. This coincidence circuit effects the colour killer action in the absence of a received chrominance signal. In this arrangement the phase of regenerator 25 is adjusted to substantially 90 degrees relative to the desired phase when the PAL phase-switching signal generator 53 is in an erroneous switching state. Maximum output is then produced by the synchronous demodulator 37 and this voltage serves as an identification signal for restoring the correct switching state of generator 53, and for effecting colour killer action. In the correct switching state the voltage produced by the synchronous demodulator, due to the fact that it is in the phase control loop of the subcarrier regenerator 25, tends to zero. In a second embodiment, Fig. 4, whose operation is similar to that of Fig. 1, the phase inverter 31 is arranged to invert the complete chrominance signal component at output 5 of decoder 1, and changeover switches 91 and 93 are provided instead of gates 65 and 17. The output of the subcarrier regenerator 25 is connected through a 90 degree phase-shifter to a reference input 97 of the demodulator 13 and to the input of a phase inverter and distributer circuit 103 to which the output of the synchronous demodulator 37 is applied. Circuit 103 controls the phase regenerator 25. A further difference from Fig. 1 is that the input of the PAL phase inversion signal generator 53 and of the coincidence circuit 75 for the colour killer operation are connected to the output of a polarity correction circuit 109 to which is applied output voltages from circuit 103 which are a measure of the phase deviation between the colour burst signal and the subcarrier signal at the inputs of the synchronous demodulator 37. The other input of the coincidence circuit 75 comprises the output of the regenerator 25 via an amplitude detector 118.
Patent ES-380467-A1 (ES)
Title: Electromagnetic switch construction
IPC: H01H51/28
Filed: 1970-06-05
Abstract: A magnetic contact unit, for operation on energization of a coil or movement of a component of a magnetic circuit which includes a permanent magnet, has an inner magnetic member 40 extending through an aperture in an outer magnetic member 42 in which it is located by a non-magnetic member 41 and a resilient magnetic diaphragm 30 forming the movable contact armature of the contact unit and being formed as a disc with peripheral arcuate arms 31 arranged so that when the disc is attracted to the magnetic member 40 the free ends of the arms rock on a conducting component such as the member 42. In Fig. 4 the member 40 is also an annular fixed contact cooperating with the armature contact disc and the U-shaped free ends 32 of the arms 31 rock on the outer member 42 to close the contacts on attraction between the disc and the member 40. In Fig. 6 the disc 30 is stressed into engagement with one fixed contact 50 and is attracted on operation to the inner fixed magnetic contact 40 to form a change-over contact unit with flux transfer between the disc 30 and the outer magnetic member 42 assisted by extensions 67. The inner magnetic member is not a contact in a normally closed contact set (Fig. 5, not shown). The fixed contact tip may be made from a disc having a layer of gold, copper, silver or silver cadmium oxide on permalloy B welded on the end of the member 40 (Fig. 7, not shown). The contact unit may be used in relays of the types described in Specifications 1,094,334, 1,098,145, 1,099,081, 1,115,401 and 1,131,928 and switches having movable magnets or magnetic components as in Specification 1,213,699.
Patent ES-401709-A1 (ES)
Title: Acrylic dispersions containing only nonfunctional groups
IPC: C09D151/00
Filed: 1972-04-13
Abstract: A process and composition for a stable polymer dispersion formed by copolymerizing vinyl monomers containing no functional OH and COOH groups in the presence of an alkylated melamine-formaldehyde reaction product dissolved in an aliphatic hydrocarbon in which the copolymer product is insoluble.
Patent ES-413168-A1 (ES)
Title: Controlled velocity drive
IPC: H02P23/00
Filed: 1973-03-30
Abstract: A control for a controlled velocity drive having a driven load includes a generator for generating a reference pulse train wherein each pulse is indicative of a desired incremental position of the load and the frequency of the pulses is indicative of a desired velocity of the load, first sensing means for sensing the actual position and velocity of the load and generating a second pulse train wherein each pulse is indicative of an actual incremental position of the load and the frequency of the pulses is indicative of the actual velocity of the load, and an up-down counter for digitally summing the pulses of the reference pulse train and the pulses of the second pulse train and generating a position error signal. The control system further includes means for converting the reference pulse train to an analog base velocity signal which has a magnitude indicative of the desired velocity of the load and second sensing means for sensing the actual velocity of the load and generating an analog velocity signal indicative thereof. A compensation circuit is provided responsive to the analog velocity signal and the analog base velocity signal to provide a compensation signal which is summed with the base velocity signal and the position error signal to provide an analog control signal. The control signal is directed to and cooperates with an analog velocity control for controlling the velocity of the load so the actual velocity of the load precisely follows the desired velocity and a zero average error in velocity results.
Patent ES-414845-A1 (ES)
Title: Resilient coupling
IPC: F16D3/78
Filed: 1973-05-17
Abstract: A coupling for two generally coaxially aligned shafts which comprises an annulus having a series of rectilinear, resilient, and compressible columns connected with their longitudinal axes along the sides of a flat polygon. Arms project transversely from the longitudinal axes at each intersection of two adjacent columns the arms alternately project from the front and rear faces of each of the adjacent columns with respect to the plane of the flat polygon. Hubs are secured on each of the shafts for receiving the alternate arms on the annulus respectively fasteners operate radially through each arm for securing the arms to the hubs and decreasing the radius of the annulus thereby placing the columns under a precompressive load. A recess is formed on each of the front and rear faces of each column extending from the projection of the arms toward the opposite end of each column for reducing axial thrust during compression of the annulus.
Patent ES-426362-A1 (ES)
Title: Resilient organic microspheres in mastic adhesives, sealants, caulks, coating compounds and related products, and methods of manufacture
IPC: C09J11/00
Filed: 1974-05-16
Abstract: Improved mastic adhesives, sealants, caulks, coating compounds and related products by using in combination therewith hollow resilient organic microspheres and the method of manufacture.
Patent ES-427966-A1 (ES)
Title: Apparatus for providing a statistical count of particulate material in a fluid
IPC: G01N15/14
Filed: 1974-07-04
Abstract: An apparatus is provided for counting the average number and size of particulate material contained within a sample volume of a fluid within a transparent bottle without disturbing or breaking the seal, if any, on the bottle. To take a statistical count, a bottle to be inspected is gently shaken to suspend any particulate material therein. Following this operation, the particulate material continues to drift and move about within the bottle for a considerable period of time. A preferred embodiment of the apparatus of the invention makes use of this situation to scan a predetermined volume of fluid within the bottle with a well-defined beam of light by scanning a beam of light over and over a path within a confined area within the fluid for a selected interval of time, i.e., since the particulate material moves and drifts about, scanning over and over the same path is equivalent to scanning different elemental volumes of the fluid. Bursts of scattered light from particulate material illuminated by the beam within a defined region of the fluid along the beam of light are then optically collected, electronically detected, analyzed and counted when certain criteria are met during the selected interval of time. To provide a better statistical average, a larger volume may be scanned by scanning the beam over the path for a longer period of time and avera
Patent ES-428205-A1 (ES)
Title: Process for the manufactue of biscuits
IPC: A23L1/30
Filed: 1974-07-12
Abstract: A high-protein, low-carbohydrate, low-fat bar is produced by kneading A. A MELT OF EDIBLE FAT AND LECITHIN OR A VEGETABLE PHOSPHATIDE WITH B. A FOOD POWDER HAVING PROTEIN CONTENT OF AT LEAST 60% BY WEIGHT BASED ON SOLIDS AND A CARBOHYDRATE CONTENT OF 5 TO 35% BY WEIGHT BASED ON SOLID CONTENT AND ADDITIVES, TO RENDER THE RESULTANT MIXTURE THIXOTROPICALLY FLOWABLE AND HOMOGENEOUS. The resultant mixture is shaped into a bar and solidifies on standing.
Patent ES-430813-A1 (ES)
Title: Metal deactivators as adhesion promotors for vulcanizable elastomers to metals
IPC: C08L1/00
Filed: 1974-10-09
Abstract: Adhesion of metals to vulcanizable elastomers is promoted by a process of incorporating into the elastomer a metal deactivator and then vulcanizing the elastomeric composition while it is in contact with the metal surface.
Patent ES-441990-A1 (ES)
Title: Method of inserting cores in a sand mold
IPC: B22C9/10
Filed: 1975-10-22
Abstract: A method of inserting a core in a sand mold wherein the sand mold is provided with a cavity for receiving the core, and, during the insertion of the core in the cavity, the sand around the core is compressed by an element or, if the core print is provided with a retaining projection, a further projection on the core print is provided for compressing the sand around the cavity in the sand mold which receives the retaining projection.